The Ciliwung is a 119 km long river in the northwestern region of Java where it flows through two provinces, West Java and the special region of Jakarta. The natural estuary of the Ciliwung, known as the Kali Besar, was an important strategic point for trade in the precolonial and colonial periods and was instrumental in the founding of the port city of Jakarta, but has been lost from a reorganization of the watercourse of the rivers around the area into canals.
Jakarta Bay is a bay north of North Jakarta city. The Thousand Islands are located in Jakarta Bay. 13 rivers flow into the bay. The majority of the bay's coastal communities consist of people living below the poverty line, in conditions of poor sanitation. Nutrient inputs from agricultural runoff, industrial pollution, and wastewater have led to eutrophication, which in turn led to changes in the area's biodiversity. Harmful algal blooms have been observed.
Cakung is a district in the administrative city of East Jakarta, Indonesia. The district is roughly bounded by Bekasi Raya Road to the west, the Bekasi Raya Road - Petukangan canal to the north, a portion of Cakung river to the east, and the Jakarta-Bandung-Surabaya railway to the south. A large area in Cakung is allotted to industrial or agricultural use. The Pulo Gadung industrial complex is located in the district. The district is served by Jakarta Outer Ring Road.
Flooding in Jakarta occurs on the northwest coast of Java, at the mouth of the Ciliwung River on Jakarta Bay, which is an inlet of the Java Sea and has happened recently in 1996, 1999, 2007, 2013, and 2020.
The Jakarta Flood Canal refers to two canals that divert floods from rivers around Jakarta instead of going through the city. This first flood control channel was designed by Hendrik van Breen, an engineer working for the Dutch East Indian Department van Burgelijke Openbare Werken, after a big flood hit the city on 13 February 1918.
The Angke River is a 91.25-kilometre (56.70 mi) long river in Jakarta, Indonesia. The river flows from the Bogor area of West Java, passing through the cities of Tangerang (Banten) and Jakarta into the Java Sea via the Cengkareng Drain. The river is connected with the Cisadane River by the Mookervaart Canal.
The Grogol River is a small river in the western part of the Special Capital Region of Jakarta, Indonesia. The lower portions of the original river have been channelized with levees built along its banks, but flooding remains a real concern. Illegal buildings built along its banks were removed in 2014, and fifty-eight village families were provided with replacement housing, but most of them could not be accommodated.
The Sunter River or Kali Sunter is a river that flows in the eastern part of Jakarta, Indonesia. The river is about 37 km long and has 73,184,092 m2 of river basin. Neighborhoods along the Kali Sunter are very densely populated and prone to frequent flooding.
The Madiun River is a river in East Java, Indonesia, about 500 km to the east of the capital Jakarta. It is the largest tributary of the Solo River. Its name indicates that it passes through the major city of Madiun, East Java, Indonesia. This river starts as several smaller tributaries converging near the city of Ponorogo, in particular the Kali Slahung, Kali Keyang, and Kali Sungkur. It eventually converges with the Solo River near the city of Ngawi.
The Mookervaart River is a canal connecting the Cisadane River in Tangerang and Kali Angke in Jakarta. Constructed from 1678 to 1689, this 25–30 meter wide channel is one of the important flood control water channels in Jakarta.
The Pesanggrahan River is a river with the upstream in the Bogor Regency, flowing through the cities of Depok, Jakarta and Tangerang, Banten. The river passes the districts of Tanah Sereal, Bojong Gede, Sawangan, Limo, Kebayoran Lama, Pesanggrahan, Kembangan, and Kebun Jeruk before flowing into the Cengkareng Drain. Based on 2005 data, 55 percent of the watershed area of the Pesanggrahan River is occupied by housing, only 7 percent is still forests, 20 percent rice fields, and 13 percent other agriculture fields.
The Krukut River is a river flowing in Jakarta originating in Bogor Regency. In the past the river was clean and one of the tourist attractions during the Dutch East Indies administration, but due to denser housing on the banks and lack of maintenance, the water turned dark and filled with trash, causing routine flooding in rainy seasons.
Cakung River is a river in the Bekasi, West Java, and the eastern part of the Special Capital Region of Jakarta, Indonesia. The lower portions of the original river have been channelized and directed into the eastern flood canal, "Banjir Kanal Timur", which continues to flow to the Java Sea in the district of Marunda, Cilincing, North Jakarta. The river regularly causes flooding in the cities of Bekasi and Jakarta.
The Buaran River is a river flowing in the Bekasi, West Java, and the eastern part of the Special Capital Region of Jakarta, Indonesia. The lower portions of the original river have been channelized and directed into the eastern flood canal, "Banjir Kanal Timur", which continues to flow to the Java Sea in the district of Marunda, Cilincing, North Jakarta. The river regularly causes flooding in the cities of Bekasi and Jakarta.
The Cipinang River is a river in the Special Capital Region of Jakarta, Indonesia. The Cipinang River is a tributary of the Sunter River, conjoining near I Gusti Ngurah Rai Street and Cipinang Muara Ilir Street, Jakarta, but in the middle, it is cut by the beginning of Banjir Kanal Timur, near Cipinang Besar Selatan Street and IPN Street, Jakarta. The river flows mainly in the district of Makassar, East Jakarta, with many houses built on both banks.
Baru Timur River is a man-made canal flowing from Ci Liwung in Bogor Regency to Jakarta, Indonesia. It was one of two canals built in the 18th century under the order of Governor-General Gustaaf Willem van Imhoff originally to transport agricultural harvest from Bogor to Batavia. Currently, both canals, now known as Kali Baru Timur and Kali Baru Barat, are among the main rivers in Jakarta, and part of the Ciliwung Cisadane flood control project. Baru Timur River flows from the Katulampa flood gate, built at the same time as the canal, along the major road Bogor Highway, passing Cimanggis, Depok, Cilangkap, until reaching the Java Sea in Kali Besar, Tanjung Priok, North Jakarta.
The Baru Barat River is a man-made canal flowing from the Cisadane River in Bogor Regency to Jakarta, Indonesia. It was one of two canals built in the 18th century under the order of the Governor-General Gustaaf Willem van Imhoff, the other being the Baru Timur River. Both canals were originally built to transport agricultural harvests from Bogor to Batavia. They are among the main rivers in Jakarta, and part of the Ciliwung Cisadane flood control project. The Baru Barat River flows through the districts of Pancoran and Tebet in South Jakarta and drains into the Banjir Kanal Barat.
Flash floods occurred throughout the Indonesian capital of Jakarta and its metropolitan area on the early hours of 1 January 2020, due to the overnight rain which dumped nearly 400 millimetres (15 in) of rainwater, causing the Ciliwung and Cisadane rivers to overflow. At least 66 people have been killed, and 60,000 displaced in the worst flooding in the area since 2007.
Kali Bekasi is a river that originates from a confluence of the Cikeas and Cileungsi rivers in the south of the border between the city of Bekasi and Bogor Regency. It flows northward, cutting through the city center of Bekasi towards the downstream area in Bekasi Regency, where it merges the flood control canal CBL (Cikarang-Bekasi-Laut), built during the era of President Soeharto's government in 1977 to prevent flooding in the northern coastal region of Bekasi. This canal intercepts numerous tributaries coming from the south, spanning from Cikarang to Bekasi. From the confluence point in the Babelan district, its flow is directed northwest until it meets the eastern of Jakarta Bay, part of the Java Sea.
